Charging kit for charging one or more rechargeable hearing devices

ABSTRACT

The disclosure relates to a charging kit for charging one or more rechargeable hearing devices being configured to be worn by a user. The charging kit comprises a base charger being configured to receive a first model specific insert, the base charger comprising a transmitter charging element, where the first model specific insert is adapted to removably receive at least a first model specific hearing device of the one or more hearing devices, the first model specific hearing device comprising a first receiver charging element. The transmitter charging element is arranged in the base charger on an adjustable support.

RELATED APPLICATION DATA

This application claims priority to, and the benefit of, Danish PatentApplication No. PA202170010 filed on Jan. 8, 2021. The entire disclosureof the above application is expressly incorporated by reference herein.

FIELD

The present disclosure relates to a charging kit for charging one ormore rechargeable hearing devices. More specifically, the disclosurerelates to a charging kit or assembly for charging one or morerechargeable hearing devices as defined in the introductory parts ofindependent claim/-s.

BACKGROUND ART

To remove the need for charging batteries in a hearing device, hearingdevices are designed to be rechargeable. As such, hearing devices areoften equipped with rechargeable batteries that can be recharged in ahearing device charger, while the batteries are still in the hearingdevice. To charge the hearing device, the hearing device is insertedinto an insert cavity of the hearing device charger. For effectivecharging of the hearing device, the hearing device is held in a chargingposition in the hearing device charger, such that the receiver chargingelement in the hearing device is placed close to the transmittercharging element in the charger.

A problem with the solutions of the prior art is that each hearing aidcharger for this reason only supports hearing aids having a specificform factor, i.e. specific outer dimensions. This result in a greatnumber of chargers on the market to support charging of e.g. differentgenerations of hearing aids or that the hearing aid manufacture islocked to a specific outer design in order to supply hearing aids usablewith current chargers on the market. A further problem with the solutionof the prior art is that the charger manufacturer has to store spareparts and support repairs of many different hearing device chargers.

There is thus a need for an improved hearing aid charger design, whichcan be easily adapted to support hearing aids with different outerdimensions, such as hearing devices of different shapes and sizes, andprovides effective charging.

SUMMARY

It is an object of the present disclosure to mitigate, alleviate oreliminate one or more of the above-identified deficiencies anddisadvantages in the prior art and solve at least the above-mentionedproblem.

In one aspect, one or more of the above objects are achieved by means ofa charging kit or assembly to charge hearing devices, as claimed in theassociated independent claim, preferred variants thereof being definedin associated dependent claims.

According to a first aspect there is provided a charging kit forcharging one or more rechargeable hearing devices, the hearing devicebeing configured to be worn by a user, the charging kit comprising abase charger being configured to receive a first model specific insert,the base charger comprising a transmitter charging element, where thefirst model specific insert is adapted to removably receive at least afirst model specific hearing device of the one or more hearing devices,the first model specific hearing device comprising a first receivercharging element, characterized in that the transmitter charging elementis arranged in the base charger on an adjustable support beingconfigured to provide an adaptable positioning of the transmittercharging element, whereby the transmitter charging element is configuredto be urged (or biased) towards the first model specific insert when thefirst model specific insert is placed in (and/or inserted into) the basecharger thereby enabling energy to be transferrable from the transmittercharging element to the first receiver charging element of the firstmodel specific hearing device when placed in the first model specificinsert.

According to some embodiments, the base charger is configured to receivea second model specific insert, where the second model specific insertis adapted to removably receive at least a second model specific hearingdevice of the one or more hearing devices, the second model specifichearing device comprising a second receiver charging element, andwherein the adjustable support of the transmitter charging element isadapted to provide the adaptable positioning of the transmitter chargingelement, so that the transmitter charging element is configured to beurged (or biased) towards the second model specific insert when thesecond model specific insert is placed in (and/or inserted into) thebase charger enabling energy to be transferrable from the transmittercharging element to the second receiver charging element of the secondmodel specific hearing device when the second model specific hearingdevice is placed in the second model specific insert.

According to some embodiments, the base charger comprises a cavityconfigured to mate with the first model specific insert and/or thesecond model specific insert, and/or each model specific insertcomprises at least one model specific insert cavity configured to matewith the first or second model specific hearing device, respectively.

According to some embodiments, the first and/or second model specificinsert or each of the first and/or second model specific insertcomprises two model specific insert cavities of which each modelspecific insert cavity is configured to mate with one of a pair of thefirst model specific hearing devices or to mate with one of a pair ofthe second model specific hearing devices.

According to some embodiments, at least one of the first model specifichearing devices and/or at least one of the second model specific hearingdevices is configured for wireless charging. Wireless charging may beobtained by means of inductive coupling, capacitive coupling, magneticcoupling, radio frequencies, light waves and/or sound waves, etc. Incase the wireless charging is obtained by means of inductive coupling,the transmitter charging element(s) may be one or more transmitter coilsand the receiver charging element(s) may be one or more receiver coils,such as respectively one or more inductive transmitter coils and one ormore inductive receiver coils.

According to some embodiments, one or more or all of the first and/orthe second model specific hearing devices is/are inductively chargeable.

According to some embodiments, the base charger comprises a cavityconfigured to mate with the first model specific insert and/or a/thesecond model specific insert, and the transmitter charging element isarranged to be positioned at a start (or base) position in the cavity ofthe base charger before the first model specific insert is placed in thebase charger, and the transmitter charging element is configured to bedisplaced to a first position by the first model specific insert and toact with a bias or urging force towards the first model specific insertwhen the first model specific insert is placed in (and/or inserted into)the base charger, the first position being different from the start (orbase) position.

According to some embodiments, the transmitter charging element isconfigured to be displaced to the first position to align with the firstreceiver charging element of the first model specific hearing device,when the first model specific hearing device is placed in the firstmodel specific insert in the base charger, and to act with a bias orurging force towards the first model specific insert and the firstreceiver charging element of the first model specific hearing device.

According to some embodiments, the base charger comprises a cavityconfigured to mate with the first model specific insert and/or a/thesecond model specific insert, and the transmitter charging element isarranged to be positioned at the start (or base) position in the cavityof the base charger before the second model specific insert is placed inthe base charger, and the transmitter charging element is configured tobe displaced to a second position by the second model specific insertand to act with a bias or urging force towards the second model specificinsert when the second model specific insert is placed in the basecharger, the second position being different from the start (or base)position.

According to some embodiments, the transmitter charging element isconfigured to be displaced to the second position to align with thesecond receiver charging element of the second model specific hearingdevice, when the second model specific hearing device is placed in thesecond model specific insert in the base charger, and to act with a biasor urging force towards the second model specific insert and the secondreceiver charging element of the second model specific hearing device.

According to some embodiments, the first distance between the start (orbase) position and the first position is shorter, equal to or longerthan the second distance between the start (or base) position and thesecond position.

According to some embodiments, the adjustable support comprises anelastic element configured to make the transmitter charging element ofthe base charger movable between different positions in the base chargerand able to act with a bias or urging force towards or against or intocontact with the first model specific insert or the second modelspecific insert when the first or second model specific insert is placedin the base charger.

According to some embodiments, the elastic element of the adjustablesupport make the transmitter charging element of the base chargermovable between different positions in the base charger, when the firstor second model specific hearing device is placed in the first or secondmodel specific insert in the base charger, and able to act with a biasor urging force towards or against or into contact with the firstreceiver charging element of the first model specific hearing device,when the first model specific hearing device is placed in the firstmodel specific insert in the base charger, and able to act with a biasor urging force towards or against or into contact with the secondreceiver charging element of the second model specific hearing device,when the second model specific hearing device is placed in the secondmodel specific insert in the base charger.

According to some embodiments, the base charger comprises a cavityconfigured to mate with the first model specific insert and/or a/thesecond model specific insert, and the adjustable support comprises anelongated body with a first free end and a second end opposite the firstfree end, whereby the transmitter charging element is arranged on thefirst free end of the adjustable support and the second end of theadjustable support is attached or connected to a guide or attachmentpoint in the base charger, and the first free end of the adjustablesupport is arranged movable/displaceable in the cavity of the basecharger.

According to some embodiments, the elongated body of the adjustablesupport comprises or is the elastic element.

According to some embodiments, the adjustable support comprises anelastic element arranged at least partly between the first free end andthe second end to exert a push force urging the first free end of theadjustable support and/or the transmitter charging element inside thebase charger in a direction being substantially perpendicular orperpendicular to the direction of insertion of the first model specificinsert and/or the second model specific insert.

According to some embodiments, the adjustable support comprises anelastic element arranged at least partly between the first free end andthe second end to exert a push force urging the first free end of theadjustable support and/or the transmitter charging element inside thebase charger in a direction being inclined or substantially in parallelwith or in parallel with the direction of insertion of the first modelspecific insert and/or the second model specific insert.

According to some embodiments, the base charger comprises one or moreinsert receiving cavities, whereby the first free end of the adjustablesupport and/or the transmitter charging element are/is arranged at leastpartly in or fully outside the insert receiving cavities of the basecharger.

According to some embodiments, the base charger comprises one or moreinsert receiving cavities in which the model specific inserts with themodel specific insert cavities are received, whereby the first free endof the adjustable support and/or the transmitter charging element are/isarranged at least partly in or fully outside the model specific insertcavities.

According to some embodiments, the base charger comprises one or moreinsert receiving cavities in which the model specific inserts with themodel specific insert cavities are received, whereby the first free endof the adjustable support and/or the transmitter charging element are/isarranged at least partly in or fully outside the model specific insertcavities and the insert receiving cavities of the base charger.

According to some embodiments, each of the model specific insertcavities of the first or second model specific inserts is defined by aninsert cavity wall and wherein each insert cavity comprises one or morethrough holes, wherein the first free end of the adjustable supportand/or the transmitter charging element are/is arranged at least partlyin one or more of the through holes when one of the first and/or secondmodel specific inserts is placed in the base charger.

According to some embodiments, the elastic element of the adjustablesupport is arranged at least partly restrained between the first freeend and the second end to be pre-tensioned to exert the bias or urgingforce.

According to some embodiments, the elastic element is configured toextend along the elongated body of the adjustable support and to encloseor encompass or surround or cover at least a part of the outer surfaceof the elongated body of the adjustable support.

According to some embodiments, the elastic element comprises at leastone helical spring or at least one leaf spring or the elastic element ismade up of at least one helical spring or at least one leaf spring.

According to some embodiments, the elastic element comprises or is madeup of at least two leaf springs arranged in a sandwiched or laminatedmanner.

According to some embodiments, the elastic element is made of metal orplastic or any combination of those materials.

According to some embodiments, the helical or leaf spring of the elasticelement is made of metal or plastic or any combination of thosematerials.

According to some embodiments, the first free end of the adjustablesupport comprising the transmitter charging element is a hinged orpivotable part of the elongated body of the adjustable support.

According to some embodiments, the transmitter charging element isconnected to the first free end of the adjustable support via a pivot orhinge.

According to some embodiments, the adjustable support comprises aprotruding member or arm or lever arranged between the first free endand the second end, the protruding member being configured to be engagedby any of the first or second model specific insert when any of thefirst or second model specific insert is introduced into the basecharger, whereby the first free end and the transmitter charging elementis urged (or bias) towards the model specific insert.

According to some embodiments, the second end of the adjustable supportis pivotally attached to the frame of the base charger via a torsionhinge.

According to some embodiments, the adjustable support comprises acompressible element arranged at least partly between the first free endand the transmitter charging element to provide a flexibility and/or atolerance adaptability and/or to exert a bias or urging force urging thefirst free end of the adjustable support and/or the transmitter chargingelement away from each other and/or towards the first or second modelspecific insert, when the first or second model specific insert isplaced in the base charger, in a direction being substantiallyperpendicular or perpendicular to the direction of insertion of thefirst model specific insert and/or the second model specific insert.Alternatively, the direction may be substantially in parallel with or inparallel with or inclined to the direction of insertion of the firstmodel specific insert and/or the second model specific insert.

The charging kit or assembly is defined herein as a hearing devicecharger comprising at least a base charger and a hearing device modelspecific insert without a hearing device, i.e. when no hearing device isplaced in the associated hearing device model specific insert of thehearing device charger. The base charger of the hearing device chargercould be defined as a base charging station. When one or more hearingdevices are placed in the associated hearing device model specificinsert of the hearing device charger, the charging kit or assembly, i.e.the hearing device charger also comprises the hearing device as anycharging of the hearing device is not possible to perform before placinga hearing device in the hearing device charger. The hearing device orpair of hearing devices may be embodied in various housing styles orform factors for example as so-called Behind-the-ear (BTE) hearingdevice, Receiver-in-the-ear (RIE) hearing device, Receiver-in-the Canal(RIC) hearing device, Microphone-and-Receiver-in ear (M&RIE) hearingdevice. The hearing device or pair of hearing devices may preferablycomprise at least a signal processor configured to compensate for theusers hearing loss.

The above described solution(s) disclose(s) a hearing device chargerbased on a product platform comprising a base charger useable with anumber of different hearing device model specific inserts. This removesthe need of development of a new hearing aid charger every time theouter dimensions on a new type or generation of hearing aids isdifferent from the existing ones. To support charging of a new hearingaid with different outer dimension by means of the same base chargeronly a new model specific insert is needed therein.

The disclosed solution(s) enable(s) dislocating of the transmittercharging element in a hearing device charger dependent on which hearingdevice model specific insert is placed in the charger. The disclosedsolution(s) provide(s) hearing device chargers with e.g. two, three,four or even up to ten or more different hearing device model specificinserts, each model specific insert being suitable for holding anassociated type or model or group of models of hearing devices due todiffering specific outer dimension, such as size and/or shape, for eachhearing device.

The disclosed solution(s) ensure(s) that the distance between and thepositions of the transmitter charging element in the hearing devicecharger and the receiver charging element in any of the differenthearing devices is optimal to provide effective charging when placed inthe model specific insert inside the hearing device charger as thetransmitter charging element is movable in the hearing device charger toadapt its placement to the shape and size of the selected model specifichearing device insert and associated hearing device.

Hereby is provided a hearing device charger both being able to supporthearing aids with different outer dimensions and to provide effectivecharging.

A further advantage is that the disclosed solution(s) provide(s)enable(s) keeping/maintaining the symmetry for different hearing devicemodel specific inserts when placed in one or in the same or in one andthe same or in a common hearing device charger.

Yet a further advantage is that the base charger may be returned to themanufacturing site and reused multiple times by exchanging one modelspecific insert with another. Another advantage is that the base chargermay be refurbished multiple times by being adapted to different modelspecific hearing devices with model specific inserts, such as whenintroducing a new generation of hearing aids to the market. This enablesexchange of the housing and other outer/user accessible parts of thebase charger as well due to health regulations.

The model specific insert is preferably mounted in the charger duringthe assembly of the hearing device charger at the manufacturing site.

A model specific hearing device may be part of a hearing device family,wherein all model specific hearing devices in the hearing device familyare configured to be used with/fit in the same hearing device modelspecific insert.

The present disclosure will become apparent from the detaileddescription given below. The detailed description and specific examplesdisclose preferred embodiments of the disclosure by way of illustrationonly. Those skilled in the art understand from guidance in the detaileddescription that changes and modifications may be made within the scopeof the disclosure.

Hence, it is to be understood that the herein disclosed disclosure isnot limited to the particular component parts of the device described orsteps of the methods described since such device and method may vary. Itis also to be understood that the terminology used herein is for purposeof describing particular embodiments only, and is not intended to belimiting. It should be noted that, as used in the specification andappended claim, the articles “a”, “an”, “the”, and “said” are intendedto mean that there are one or more of the elements unless the contextexplicitly dictates otherwise. Thus, for example, reference to “a unit”or “the unit” may include several devices, and the like. Furthermore,words like “comprising”, “including”, “containing” and similar wordingsdoes not exclude other elements or steps. Moreover, reference to a firstor a second model specific insert also mean referring to a first modelspecific insert already assembled in the base charger, which first modelspecific insert is replaced by another model specific insert being forexample a third or fourth or fifth model specific insert as the basecharger is adapted to receive different types of model specific inserts,i.e. one different model specific insert at a time. These differenttypes of model specific inserts that the base charger is configured toreceive could e.g. be a first type of model specific insert or a secondtype of model specific insert or a third type of model specific insertor a fourth type of model specific insert, i.e. any suitable n:th typeof model specific insert.

The present disclosure relates to different aspects including thesystem/kit/assembly described above and in the following, andcorresponding system parts, methods, devices, systems, kits, uses and/orproduct means, each yielding one or more of the benefits and advantagesdescribed in connection with the first mentioned aspect, and each havingone or more embodiments corresponding to the embodiments described inconnection with the first mentioned aspect and/or disclosed in theappended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The above objects, as well as additional objects, features andadvantages of the present disclosure, will be more fully appreciated byreference to the following illustrative and non-limiting detaileddescription of example embodiments of the present disclosure, when takenin conjunction with the accompanying drawings.

FIG. 1A shows an example of a charging kit, i.e. hearing device chargerwith one hearing device inserted therein in perspective according to anembodiment of the present disclosure.

FIG. 1B shows an example of a charging kit, i.e. hearing device chargerwith two or a pair of hearing devices inserted therein in perspectiveaccording to an embodiment of the present disclosure.

FIG. 1C shows an example of a charging kit, i.e. hearing device chargerwith no hearing devices inserted therein in an exploded view before orafter disassembly according to an embodiment of the present disclosure.

FIG. 2A shows the hearing device charger of FIG. 1A in a top plane view(towards top/upper surface/side of the hearing device charger) accordingto an embodiment of the present disclosure.

FIG. 2B shows the hearing device charger of FIG. 1B in a top plane view(towards top/upper surface/side of the hearing device charger) accordingto an embodiment of the present disclosure.

FIG. 3A shows a side view of the hearing device charger of FIGS. 1A and2A in a direction from the left of FIG. 1A according to an embodiment ofthe present disclosure.

FIG. 3B shows a side view of the hearing device charger of FIGS. 1B and2B in a direction from the left of FIG. 1B according to an embodiment ofthe present disclosure.

FIG. 4A shows a hearing device charger in a top plane view according toan embodiment of the present disclosure.

FIG. 4B shows a hearing device charger in a top plane view according toan embodiment of the present disclosure.

FIG. 5A shows a hearing device charger without hearing devices in aperspective top view (seen towards the top/upper surface/side of thehearing device charger) with exposed transmitter receiver elementsaccording to an embodiment of the present disclosure.

FIG. 5B shows a hearing device charger without hearing devices in aperspective top view (seen towards the top/upper surface/side of thehearing device charger) with no transmitter receiver elements exposedaccording to an embodiment of the present disclosure.

FIG. 6A shows a perspective top view (towards the top/uppersurface/side) of a part of a base charger of a hearing device charger(without any model specific insert) according to an embodiment of thepresent disclosure.

FIG. 6B shows a side plane view in cross-section of a part of a hearingdevice charger (with a model specific insert) according to an embodimentof the present disclosure.

FIG. 6C shows a side view in perspective in cross-section of a part of ahearing device charger (with a model specific insert) according to anembodiment of the present disclosure.

FIG. 7A shows a side plane view of a cross-section of a part of ahearing device charger (with a model specific insert) according to anembodiment of the present disclosure.

FIG. 7B shows a side plane view of a cross-section of a part of ahearing device charger (with a model specific insert) according to anembodiment of the present disclosure.

FIG. 7C shows a side plane view of a cross-section of a part of ahearing device charger (with a model specific insert) according to anembodiment of the present disclosure.

FIG. 8A shows a side plane view of a cross-section along line A-A inFIG. 5B of a hearing device charger (with a model specific insert)according to an embodiment of the present disclosure.

FIG. 8B shows a side plane view of a cross-section along line B-B inFIG. 5B of the hearing device charger in FIG. 8A according to anembodiment of the present disclosure.

FIGS. 8C and 8D show perspective views of parts of the base charger ofthe hearing device charger in FIGS. 8A and 8B (without any modelspecific insert) according to an embodiment of the present disclosure.

FIG. 9A shows a perspective side view of a part in a base charger of ahearing device charger (without any model specific insert) according toan embodiment of the present disclosure.

FIG. 9B shows a side view of a cross-section of the part in the basecharger in a direction from the right to the left in FIG. 9A accordingto an embodiment of the present disclosure.

FIG. 10A shows a perspective top view (seen towards the top/uppersurface/side) of a part of a base charger of a hearing device charger(without model specific inserts) according to an embodiment of thepresent disclosure.

FIG. 10B shows a side plane view in cross-section of a part of a hearingdevice charger (with a model specific insert) according to an embodimentof the present disclosure.

FIG. 11A shows a perspective top view (seen towards the top/uppersurface/side) of a part of a base charger of a hearing device charger(without model specific inserts) according to an embodiment of thepresent disclosure.

FIG. 11B shows a side plane view in cross-section of a part of a hearingdevice charger (with a model specific insert) according to an embodimentof the present disclosure.

FIG. 12 shows a perspective top view (seen towards the top/uppersurface/side) of a part of a base charger of a hearing device charger(without model specific inserts) according to an embodiment of thepresent disclosure.

FIG. 13A shows a side view of a cross-section of a part in a basecharger of a hearing device charger (without model specific inserts)according to an embodiment of the present disclosure.

FIG. 13B shows a side view of a cross-section of the part in the basecharger of FIG. 13A when a model specific insert is received or has beenreceived in the base charger to form a hearing device charger accordingto an embodiment of the present disclosure.

FIG. 13C shows a perspective top view (seen towards the top/uppersurface/side) of the part of the base charger in FIG. 13A (without modelspecific inserts) according to an embodiment of the present disclosure.

FIG. 14 shows a side view of a part in a base charger of a hearingdevice charger (without model specific inserts) according to anembodiment of the present disclosure.

DETAILED DESCRIPTION

The present disclosure will now be described with reference to theaccompanying drawings 1A to 14, in which preferred example embodimentsof the disclosure are shown. The disclosure may, however, be embodied inother forms and should not be construed as limited to the hereindisclosed embodiments/examples. The disclosed embodiments are providedto fully convey the scope of the disclosure to the skilled person. Likereference numerals refer to like elements throughout. Like elementswill, thus, not be described in detail with respect to the descriptionof each figure. It should also be noted that the figures are onlyintended to facilitate the description of the embodiments. They are notintended as an exhaustive description of the claimed invention or as alimitation on the scope of the claimed invention. In addition, anillustrated embodiment needs not have all the aspects or advantagesshown. An aspect or an advantage described in conjunction with aparticular embodiment is not necessarily limited to that embodiment andcan be practiced in any other embodiment/-s even if not so illustrated,or if not so explicitly described. Throughout, the same referencenumerals are used for identical or corresponding parts.

FIGS. 1A to 3B show a first aspect of this disclosure being a chargingkit or assembly 1, i.e. a hearing device charger, for charging one ormore rechargeable hearing devices 100, 110. The hearing devices could beone or a first hearing device 100 as in FIGS. 1A, 2A and 3A (shownbefore insertion of a second hearing device or before removing a firstone already in the charging kit 1) and/or a first pair 100 of hearingdevices as in FIGS. 1B, 2B and 3B (shown after insertion of two hearingdevices or before removing one or both from the charging kit 1). Thehearing devices could be another or a second hearing device 110 and/or asecond pair 110 of hearing devices. The hearing devices could be a firsthearing device 100 and/or a first pair 100 of hearing devices and/or asecond hearing device 110 and/or a second pair 110 of hearing devices.In some embodiments, the first hearing device 100 is different from thesecond hearing device 110. In some embodiments, the first pair ofhearing devices 100 is different from the second pair of hearing devices110. In some embodiments, the first pair of hearing devices 100comprises hearing devices that are different from each other. In someembodiments, the second pair of hearing devices 110 comprises hearingdevices that are different from each other. In some embodiments, thefirst hearing device 100 and/or first pair of hearing devices 100 isdifferent from the second hearing device 110 and/or the second pair ofhearing devices 110. The differences between hearing devices 100, 110could be in size, shape, color, texture, functionality and/ortype/model/generation, e.g. for adults or children.

The hearing device(s) 100, 110 is/are configured to be worn by a user.The hearing devices 100, 110 may comprise a processing unit configuredto compensate for a hearing loss of the user of the hearing devices. Thecharging kit 1 comprises a base charger 10 configured to receive one ormore model specific inserts 200, 210. In some embodiments, the basecharger 10 comprises one or more transmitter charging elements 11. Oneor each hearing device 100, 110 comprises a BTE housing 103, 113configured for placement behind the user's left or right ear, and atleast one rechargeable battery 102, 112 for powering the hearing device100, 110. One or each hearing device 100, 110 may further comprise ahook or an ear plug 104, 114 configured for placement at least partlyinside the user's left or right ear canal. FIGS. 1A, 2A, 2B, 3A and 3Bshow an ear plug 104, 114 comprising a receiver module. FIG. 2B shows anear plug 104, 114 comprising a receiver module and a dome attached to afree end of the receiver module. In some embodiments, the base charger10 comprises one or more transmitter charging elements 11 for eachhearing device 200, 210. Each model specific insert 200, 210 is adaptedto removable receive at least one model specific hearing device 100,110, i.e. adapted to removably receive the BTE housing 103, 113 of themodel specific hearing device 100, 110. In some embodiments, each modelspecific insert 200, 210 is adapted to removable receive two or a pairof model specific hearing devices 100, 110, i.e. adapted to removablyreceive the BTE housing 103, 113 of the two or pair of model specifichearing devices 100, 110. A model specific hearing device 100, 110comprises at least one receiver charging element 101, 111. In someembodiments, each model specific hearing device 100, 110 comprises atleast one receiver charging element 101, 111. The transmitter chargingelement(s) 11 is/are configured to charge the hearing device(s) 100, 110via the receiver charging element(s) 101, 111. The base charger 10comprises at least one cavity 12, an attachment 13 for holding a modelspecific insert 200, 210, a charger housing and a frame 16, 16B thatcould be partly exposed or be arranged fully and non-exposed inside thecharger housing of the base charger, see FIGS. 1A to 1C, 3A, 3B, and 5Ato 6C and 8A to 14 . The charger housing may comprise a top/uppersurface or housing 14, and a bottom/lower surface or housing 15, seeFIGS. 1A to 1C, 2A, 2B, 3A, 3B, 5A, 5B, 6C, 8A and 8B. In FIGS. 1A, 1Band 2A to 3B, each of the model specific hearing device(s) 100, 110comprises at least one BTE housing 103, 113 and at least one hook or earplug 104, 114. The first hearing device(s) 100 comprises a first BTEhousing 103 and a hook or ear plug 104, see FIGS. 1A. 1B and 2A to 3B.The second hearing device(s) 110 comprises a second BTE housing 113 anda hook or ear plug 114, see FIGS. 2B and 3B. Each ear plug 104, 114 maybe connected to a BTE housing 103, 113 via a tube and/or wire, see FIGS.1A and 2A to 3B. The ear plug 104, 114 may be connected to the BTEhousing 103, 113 via the tube and/or wire at one end, see FIGS. 1A and2A to 3B, and the ear plug may be connected to a dome at the other end,see FIG. 2B.

The transmitter charging element(s) 11 is/are arranged in the basecharger 10 on an adjustable support 20 being configured to provide anadaptable positioning of the transmitter charging element, see FIGS. 1Cand 4A to 14 . The transmitter charging element(s) 11 may be supportedby a support plate 11A. The support plate 11A may be made from a hardand/or brittle material. The support plate 11A may be made from ferrite.The transmitter charging element 11 of the base charger 10 in thehearing device charger 1 is configured to be urged/bias towards a firstmodel specific insert 200 when the first model specific insert is placedin and/or inserted into the base charger 10. This enables energy to betransferrable from the transmitter charging element(s) 11 to the firstreceiver charging element(s) 101 of the first model specific hearingdevice 100 when the first model specific hearing devise, e.g. the BTEhousing 103 of the first model specific hearing device, is placed in thefirst model specific insert 200 of the hearing device charger 1.

In some embodiments, the same goes for a second model specific insert210 in that the adjustable support(s) 20 of the transmitter chargingelement(s) 11 in the base charger 10 of the hearing device charger 1is/are adapted to provide the adaptable positioning of the transmittercharging element(s), see FIGS. 1C and 4A to 14 . The transmittercharging element 11 is configured to be urged/biased towards a secondmodel specific insert 210 when the second model specific insert isplaced in and/or inserted into the base charger 10. As above, thisenables energy to be transferrable from the transmitter chargingelement(s) 11 to the second receiver charging element(s) 111 of thesecond model specific hearing device 110 when the second model specifichearing device, e.g. the BTE housing 113 of the second model specifichearing device, is placed in the second model specific insert 210 of thehearing device charger 1.

In some embodiments, the transmitter charging element(s) 11 is/areconfigured to be urged/biased or moved by being pushed and/or pulled indirection(s) towards the receiver charging element(s) 101, 111 of themodel specific hearing device(s) 100, 110 for adapting to its/theirdifferent shape(s) and size(s) etc., see FIGS. 1C and 4A to 14 . This isdone for pressing the transmitter and receiver charging element(s) 11,101, 111 with sufficient force towards each other to ensure correctdistance(s) between them that provide secure and effective/reliablecharging. In some embodiments, the charging element(s) 11, 101, 111 orat least the transmitter charging element(s) 11, press/-es towards theassociated model specific insert(s) 200, 210 or each other while notbeing in physical contact with each other. In some embodiments, thecharging element(s) 11, 101, 111 press/-es against and in physicalcontact with the associated model specific insert(s) 200, 210 and/oreach other. These directions, reference D, of urging and/or biasingand/or moving and/or pushing and/or pulling between different positionsP, P₁, and P₂ are visualized by dotted/solid lines and arrows and thedifferent distances between these positions are referenced as d₁ and d₂in FIGS. 4A and 4B, and as D, P, P₁, and P₂ in e.g. FIGS. 5A, 5B, 6A to6C, 7A to 7C, 8A to 8D, 9A to 9B, 10A to 10B, 11A to 11B, 12, and 13A to13C. In FIG. 14 , the urging or biasing or movement of the transmitterelement 11 to adapt to different model specific inserts 200, 210 (notshown) and hearing devices 100, 110 (not shown) is done in such smallscale by use of a compressible element(s) 23 of the adjustablesupport(s) 20, such as rubber or foam in the form of a plate(s)/pad(s),e.g. made of Poron®, that no arrow visualises those small movements andchanging distances and positions P, P₁, and P₂ for the transmittercharging element(s) 11. In this embodiment, the adjustable support(s) 20may be the compressible element(s) 23. In FIGS. 1C, 6B, 6C, 7A to 7C,8A, 8B, 10B, 11B, 13A, a vertical arrow in solid lines pointing downvisualizes the movement of a model specific insert 200, 210 wheninserted into or removed out in the opposite direction from the basecharger 10. FIGS. 1A to 5B, 6B, 6C, 7A to 7C, 8A, 8B, 10B, 11B, 13B showthe model specific insert(s) 200, 210 when inserted, i.e. when receivedand/or assembled in the base charger 10 to form the hearing devicecharger 1, this movement is principally applicable to allfigs./embodiments when inserting or removing a model specific insert200, 210.

Each model specific insert 200, 210 comprises at least one modelspecific cavity 201, 211 configured to mate with at least one of thefirst or second model specific hearing devices 100, 110, respectively,see FIGS. 1A to 5B, 6B, 6C, 7A to 7C, 8A to 8B, 10B, 11B, and 13A to13B.

FIG. 1C shows the charging kit or assembly 1 when being assembled or atdisassembly (vertical double arrows visualize the directions of assemblyand disassembly and the directions of insertion and removal of the modelspecific insert(s) 200, 210). The components making up the base charger10, such as the frame 16, 16B, the control unit 17 and the bottomhousing 15 are in some embodiments, e.g. in FIG. 1C, detachablyconnected by means of attachments 13A, e.g. screws, but could also beconnected via snap fit locking 13 or the like as shown in FIG. 8B. InFIG. 1C, the frame 16 comprises walls 16B that define at least onecavity 16A for receiving at least one model specific cavity 201, 211 ofat least one model specific insert 200, 210. In FIG. 1C, the frame 16 isa stand or support for holding/attaching the adjustable support(s) 20 atone or more attachment points 21 and for enabling guiding andcontrolling the adjustability and movement of the adjustable support viaone or more guides 27.

In some embodiments, the base charger 10 comprises one or more cavities12 configured to mate with or receive the first model specific insert200 and/or the second model specific insert 210, see FIGS. 1C and 6A to14 . The frame cavity(ies) 16A are arranged inside or within these oneor more cavities 12 of the base charger after assembly, see e.g. FIGS.1C (after the top housing 14 is thread or placed over the frame 16 fromabove), 6A, 6B, 7B, 8A to 8C, 10A, 11A, 11B and 12. Each model specificinsert 200, 210 in all embodiments of the present disclosure isconfigured to be held in place in the base charger 10 after insertiontherein to form the charging kit and hearing device charger 1 by meansof at least one attachment 13, see FIGS. 1C and 8B. The attachment 13could be a snap fit locking or screw or adhesive bonding or similar, seeFIGS. 1C and 8B. In FIG. 1C, the attachment 13 is shown as a snap fitlock comprising one or more hook(s) 13 protruding from the first orsecond model specific insert 200, 210 and corresponding one or morecatch(es) 13 in the top housing 14 of the base charger 10 configured forreceiving and/or holding and/or retaining the hook(s) 13. The modelspecific insert(s) 200, 210 is/are in some embodiments detachablyattached to the frame 16, 16B and/or the top housing 14 and/or thebottom housing 15 of the base charger 10.

Each model specific insert 200, 210 comprises at least one modelspecific cavity 201, 211 configured to mate with the first or secondmodel specific hearing device 100, 110, respectively, see FIGS. 1A to5B, 6B, 6C, 7A to 7C, 8A to 8B, 10B, 11B, and 13A to 13B. This mating ispreferably provided by molding the model specific insert(s) 200, 210 andthe model specific cavity(ies) 201, 211 according to the associatedhearing device(s) 100, 110. A tolerance may be added to the modelspecific cavity 201, 211 in order to provide a loose fit of the modelspecific hearing aid(s) 100, 110 in the model specific cavity. In someembodiments, each model specific insert 200, 210 comprises two modelspecific cavities 201, 211 of which each model specific cavity 201, 211is configured to mate with an associated one of the first model specifichearing devices 100 or to mate with an associated one of the secondmodel specific hearing devices 110. Commonly, each model specific cavity201, 211 is configured to receive only one hearing device 100, 110. Insome embodiments (not shown), each model specific cavity 201, 211 isconfigured to receive two or more hearing devices, providing one commonmodel specific cavity 201, 211, e.g. as a twin cavity having two openand adjoining halves or spaces, one half space for each hearing device.In some embodiments, each model specific insert 200, 210 comprises twomodel specific cavities 201, 211 that pairwise is configured to matewith an associated pair of first model specific hearing devices 100 orto mate with an associated pair of the second model specific hearingdevices 110, see at least FIGS. 1A to 5B.

In some embodiments, at least one of the first model specific hearingdevices 100 and/or at least one of the second model specific hearingdevices 110 and/or each of the hearing devices 100, 110 is configuredfor wireless charging, e.g. by means of inductive coupling, capacitivecoupling, magnetic coupling, radio frequencies, light waves and/or soundwaves, etc. In some embodiments, one or both or more or all of the firstand the second model specific hearing devices 100, 110 is/areinductively chargeable. The transmitter charging element(s) 11 may inthis disclosure be one or more transmitter coils and the receivercharging element(s) 101, 111 may be one or more receiver coils, such asone or more inductive transmitter coils and one or more inductivereceiver coils.

In some embodiments, see FIGS. 1B, 2B, 3B, 4A and 4B, the hearing devicecharger 1 is configured to comprise two model specific hearing devices100, 110 inserted into the model specific insert 200, 210. Thetransmitter charging element(s) 11 to the right in FIGS. 4A and 4B isarranged to be positioned at a start or base position Pin thecavity/-ies 12 of the base charger 10 before the first model specificinsert 200 or the (different) second model specific insert 210 is placedin the base charger 10. This start position P is shown in FIGS. 4A, 4B,5A, 5B, 6A, 7A, 8C, 8D, 9A, 9B, 10A, 11A, 12, 13A, 13C and 14 beforeinsertion of any model specific insert 200, 210 in the base charger 10.The same goes for the transmitter charging element(s) 11 to the left inFIGS. 4A and 4B but for simplicity only the change of positions of eachtransmitter charging element and direction D of displacement arevisualized with single and double arrows and dotted and dashed lines inmore detail by means of the right transmitter charging element(s) 11 ofFIGS. 4A and 4B, and in some detail for any of the transmitter chargingelement(s) 11 in FIGS. 1C, 7A and 13A to demonstrate the principle andfunctionality of the adjustable support(s) 20. The transmitter chargingelement(s) 11 is/are configured to be displaced to a first position P₁by the first model specific insert 200. This enables the transmittercharging element(s) 11 to act with a bias/urging force towards the firstmodel specific insert 200 when the first model specific insert is placedin the base charger 10. The first position P₁ is different from thestart or base position P. This first position P₁ is shown in FIGS. 4A,4B, 6B, 6C, 7A to 7C, 8A, 8B, 10B, 11B, 13B and 14 . FIG. 4A furthershows how a first distance d₁ from the start position P to the firstposition P₁ may be shorter than a second distance d₂ from the startposition P to the second position P₂. However, in FIG. 4A, the firstdistance d₁ from the start position P to the first position P₁ could belonger than the second distance d₂ from the start position P to thesecond position P₂, hence, these distances d₁ and d₂ depend on the modelspecific insert(s) 200, 210. In some embodiments, these distances aremore than two distances, e.g. a third or fourth distance in same way asthe positions could be more than two positions if more than twodifferent model specific inserts 200, 210 were configured to be placedin the base charger 10 as the base charger 10 is adapted to receive morethan two such different model specific inserts, one model specificinsert at a time. FIG. 4A further shows how a symmetrical placement oftwo cavities 201, 211 in a model specific insert 200, 210 may beprovided by means of the disclosed embodiments independent on whichmodel specific insert is placed in the base charger 10, e.g. independenton whether the first 200 or second model specific insert 210 or anothermodel specific insert is placed in the base charger. This compared toFIG. 4B where positioning of the transmitter charging element(s) 11 andreceiver charging element(s) 101, 111 in the base charger cavity is thesame for all model specific insert. In FIGS. 4A and 4B, the distances d₁and d₂ and sizes of the transmitter charging element(s) are not to scaleto be able to visualize the movements between different positions, suchas from the start position P for a first model specific insert 200urging the transmitter charging element(s) 11 away from the first modelspecific insert to a first position P₁ at a first distance d₁ beingsmaller than when a second model specific insert 210 is inserted intothe base charger 10 and urging the transmitter charging element(s) 11 toa second position P₂ at a second distance d₂. In embodiments of FIGS.13A to 13C, the model specific insert(s) 200, 210 when inserted intobase charger 10 along the direction of the arrow pointing downwards, alever 25 is pushed down urging the transmitter charging element(s) 11towards the first model specific insert 200 to a first position P₁ at afirst distance d₁ or towards the second model specific insert 210 to asecond position P₂ at a second distance d₂.

In some embodiments, the transmitter charging element(s) 11 is/areconfigured to be displaced to the first position P₁ to align with thefirst receiver charging element(s) 101 of the first model specifichearing device 100 when the first model specific hearing device isplaced in the first model specific insert 200 in the base charger 10.This enables the transmitter charging element(s) 11 to act with a biasor urging force towards the first model specific insert 200 and thefirst receiver charging element(s) 101 of the first model specifichearing device 100. In some embodiments, the transmitter chargingelement(s) 11 is/are arranged to be positioned at the start position Pin the cavity/-ies 12 of the base charger 10 before the second modelspecific insert 210 is placed in the base charger. The transmittercharging element(s) 11 is/are configured to be displaced to a firstposition P₁ or a second position P₂ by the second model specific insert210. This enables the transmitter charging element(s) 11 to act with abias/urging force towards the second model specific insert 210 when thesecond model specific insert is placed in the base charger 10. The firstor second position P₁, P₂ is different from the start position P. Thisfirst or second position P₁, P₂ is shown in FIGS. 4A, 4B, 5A, 5B, 6B,6C, 7A to 7C, 8A, 8B, 10B, 11B, 13A to 13C and 14 .

In some embodiments, the transmitter charging element(s) 11 is/areconfigured to be displaced to the second position P₂ to align with thesecond receiver charging element 111 of the second model specifichearing device 110 when the second model specific hearing device isplaced in the second model specific insert 210 in the base charger 10.This enables the transmitter charging element(s) 11 to act with a biasor urging force towards the second model specific insert 210 and thesecond receiver charging element 111 of the second model specifichearing device 110. The first or second position P₁, P₂ is shown inFIGS. 4A, 4B, 5A, 5B, 6B, 6C, 7A to 7C, 8A, 8B, 10B, 11B, 13A to 13C and14 . In some embodiments, the first distance d₁ between the startposition(s) P and the first position(s) P₁ is shorter, equal to orlonger than the second distance d₂ between the start position(s) P andthe second position(s) P₂. The positions P, P₁ and P₂ are shown in FIGS.4A, 4B, 6A to 6C, 7A to 7C, 8A to 9B, 10A to 10B, 11A to 11B, 12, 13A to13C and 14 . In some embodiments, another model specific insert, e.g. athird or fourth one displaces the transmitter charging element(s) 11 tothe first position P₁ or the second position P₁ or to another positionif placed in the base charger 10, i.e. these positions are in someembodiments different for each model specific insert. The above enablesmaintaining the symmetry of the cavities 201, 211 in the base charger 10even though differently shaped model specific inserts are placedtherein.

In some embodiments, the adjustable support(s) 20 of the base charger 10comprises one or more elastic elements 22 to make the transmittercharging element(s) 11 of the base charger movable between differentpositions P, P₁, P₂ in the base charger. This enables the transmittercharging element(s) 11 to act with a bias/urging force towards oragainst or into contact with the first model specific insert 200 or thesecond model specific insert 210 when the first or second model specificinsert is placed in the base charger 10. In some embodiments, theelastic element(s) 22 of the adjustable support(s) 20 make thetransmitter charging element(s) 11 of the base charger 10 movablebetween different positions P, P₁, P₂ in the base charger when the firstor second model specific hearing device 100, 110 is placed in the firstor second model specific insert 200, 210. This enables the transmittercharging element(s) 11 to act with a bias or urging force towards oragainst or into contact with the first receiver charging element 101 ofthe first model specific hearing device 100 when the first modelspecific hearing device is placed in the first model specific insert 200in the base charger 10, and also to act with a bias/urging force towardsor against or into contact with the second receiver charging element 111of the second model specific hearing device 110 when the second modelspecific hearing device is placed in the second model specific insert210 in the base charger.

In some embodiments, see e.g. FIGS. 6A to 6C, 7A to 7C, and 8A to 13C,the adjustable support 20 comprises an elongated body with a first freeend 20A and a second end 20B opposite the first free end. Here, thetransmitter charging element(s) 11 is/are arranged on the first free end20A of the adjustable support 20. The support plate 11A may be arrangedbetween the transmitter charging element(s) 11 and the first free end20A. The transmitter charging element(s) 11 may be attached to the firstfree end 20A via the support plate 11A. In some embodiments, see e.g.FIGS. 6A to 6C, 7C, 8A to 9B, 10A, 10B, 11A, 11B, 12, and 13A to 13C,the second end 20B of the adjustable support 20 is attached to a guide27 or attachment point 21 in the base charger 10. Here, the first freeend 20A of the adjustable support 20 is arranged movable and/ordisplaceable in the cavity/-ies 12 of the base charger 10. In someembodiments, the elongated body of the adjustable support 20 comprisesor is the elastic or compressible element 22, 23.

In some embodiments, see e.g. FIGS. 6A to 12 , each adjustable support20 comprises an elastic element 22 arranged at least partly between thefirst free end 20A and the second end 20B to exert a push force urgingthe first free end 20A of the adjustable support and/or the transmittercharging element(s) 11 inside the base charger 10 in a direction beingsubstantially in parallel with or in parallel with or inclined orsubstantially perpendicular or perpendicular to the direction ofinsertion of the first 200 and/or the second model specific insert(s)210. These directions may be guided by at least one guide 27 in whichthe elongated body of the adjustable support 20 is moved by beingdisplaced or slid by the elastic element 22 urging or biasing theelongated body, see FIGS. 1C, 6A to 6C, 7A to 7C, and 10A, 10B.

In some embodiments, see e.g. FIGS. 6A to 6C, the elastic element 22 islocated between the first free end 20A and the second end 20B of theadjustable support 20, i.e. located between a first attachment point 21at the second end 20B in the form of a wall of the inner frame 16 of thebase charger 10 and a second attachment point at the first free end 20Ain the form of a shoulder or collar 26 on the elongated body of theadjustable support, see FIG. 6B. Here, the elastic element 22 of theadjustable support 20 is a helical spring arranged at least partlyrestrained between the shoulder 26 of the first free end 20A and theattachment point 21 of the second end 20B to be pre-tensioned to exertthe bias or urging or pushing force towards the model specific insert(s)200, 210, which push force is directed to the left of FIG. 6B, similarto the horisontal arrow in the elongated body of the adjustable support20. In some embodiments, e.g. in FIGS. 6A and 6B, the helical spring 22has one or first end 22A supported at the first attachment point 21 andguided by a first guide 27 at this end to the right in the figs. and hasanother or second end 22B to the left in these figs., which second end22B is supported and guided by the second attachment point being theshoulder 26 and a second guide 27. The guides 27 provides control andstable movement for the elongated body and the helical spring 22 of theadjustable support 20 when being displaced back and forth in the urgingdirection D, i.e. away from or towards the model specific insert(s) 200,210 when inserted into or removed from the base charger 10. In someembodiments, at least one or each of the first and the second ends 22A,22B of the helical spring 22 is/are attached to the first attachmentpoint 21 and/or the second attachment point being the shoulder 26, thisis of advantage to not have to handle a loose spring if assembledtogether with the elongated body of the adjustable support but mayworsen the functionality and life span of the spring 22 due to higherincurred strain at its end(s).

In some embodiments, in FIGS. 6A to 6C and 8A to 13C, the transmittercharging element(s) 11 is/are supported or connected or attached to aholder 28. The holder 28 is in some embodiments securely attached to orintegrated in the first free end 20A of the adjustable support 20 as inFIGS. 6A to 6C, and 10A to 12 or an integrated part of the free end 20Aas in FIGS. 8A to 9B and 13A to 13C.

This holder 28 has at least two functions, one being a support for thetransmitter charging element(s) 11 and one being a protection againstwear from the model specific insert(s) 200, 210 when inserted or removedfrom the base charger 10. This wear protection of the holder 28 for thetransmitter charging element(s) 11 is achieved in some embodiments byproviding the holder with an outer protective frame or flange or edge 29that could be straight or conical for enabling a loose fit at thebeginning of the insertion of the model specific insert(s) 200, 210 andtighter fit the further down the model specific insert(s) are moved intothe base charger 10 and while urging the transmitter charging element(s)away or towards itself/themselves. In some embodiments, the protectiveflange or edge 29 extends around the whole circumference of thetransmitter charging element(s) 11 or at least partly around thecircumference of the transmitter charging element(s) 11. The protectiveflange or edge 29 may extend around the upper circumference of thetransmitter charging element(s) 11 closer to the upper housing 14 of thebase charger as seen e.g. in FIGS. 9A and 9B or extend at least partlyaround the circumference of the transmitter charging element(s) 11 witha shape similar to an upright U or horse shoe with its orifice or mouthdirected upwards as seen e.g. in FIGS. 8B, 8C, 8D, 10A, 11A, and 12 oran upside down U or horse shoe as seen e.g. in FIG. 9A. In someembodiments, e.g. in FIGS. 6A and 10A, the protective flange or edge 29extends around the circumference of the transmitter charging element(s)11 forming sides extending in substantially the same direction as thedirection of insertion for the model specific insert(s) 200, 210. Insome embodiments, e.g. in FIG. 6A, the protective flange or edge 29extends around the circumference of the transmitter charging element(s)11 forming sides extending in substantially the same direction as thedirection of insertion for the model specific insert(s) 200, 210, whichsides 29 extends in one direction substantially vertical closer to theupper housing 14 of the base charger 10 and transcends into anotherdirection at the end closer to the bottom housing 15 of the base chargerin an inclined direction towards the first free end 20A of theadjustable support 20.

In some embodiments, see FIGS. 6A and 6B, the spring 22 is configured toextend along the elongated body of the adjustable support 20 and toenclose or encompass or surround or cover at least a part of the outersurface of the elongated body of the adjustable support. The elongatedbody of the adjustable support 20 may be shaped like a cylindrical pinor be profiled with another elongated shape via extrusion. Thecylindrical pin of the adjustable support 20 may be a solid or hollowcylindrical pin. The cylindrical pin of the adjustable support 20 isguided in the guide 27 of FIGS. 6A and 6B by sliding back and forth tothe right or left in these figs. according to the horisontal doublearrow visualizing the urging or pushing direction D when the modelspecific insert(s) 200, 210 is/are inserted into or removed from thebase charger 10 as visualized by the vertical double arrow inside themodel specific cavity/-ies 201, 211. In some embodiments, see FIG. 6C,the spring 22 is configured to extend along the elongated body of theadjustable support 20 but at least partly inside a channel or groove ofthe elongated body of the adjustable support.

In some embodiments, see e.g. FIGS. 6A, 6B, 8A to 8C, and 10A to 12 ,the first free end 20A of the adjustable support 20 and/or thetransmitter charging element(s) 11 are/is arranged at least partly inone or more insert cavities 16A of the frame 16 of the base charger 10.Each insert cavity 16A is defined by one or more insert guides 16B, suchas one or more walls 16B extending from the frame 16 of the base charger10 or one or more surfaces 16B of the frame 16 of the base charger 10.The one or more insert guides 16B may fully or partly enclose therespective model specific cavity 201, 211 as long as an orifice isprovided for receiving the model specific insert(s) 200, 210 whenintroduced into the base charger 10. The one or more insert guides 16Bof the base charger 10 may facilitate correct placement, i.e. guidance,of placement and alignment of the model specific insert(s) 200, 210 inthe base charger 10.

In some embodiments, the base charger 10 comprises one or more insertreceiving cavities 16A in which the model specific inserts 200, 210 withthe model specific insert cavities 201, 211 are received.

In some embodiments, see FIGS. 5A, 8A and 8B, the first free end 20A ofthe adjustable support 20 is arranged at least partly in the modelspecific insert cavities 201, 211 and the insert receiving cavities 16Aof the base charger. In some embodiments, see FIGS. 5A, 8A and 8B, thetransmitter charging element(s) 11 is/are arranged at least partly inthe model specific insert cavities 201, 211 and the insert receivingcavities 16A of the base charger. In some embodiments, see FIGS. 5A, 8Aand 8B, the first free end 20A of the adjustable support 20 and thetransmitter charging element(s) 11 are arranged at least partly in themodel specific insert cavities 201, 211 and the insert receivingcavities 16A of the base charger. In some embodiments, see FIGS. 5A, 6A,6B, 8A to 8C, 10A, 10B, 11A, 11B and 12 , the first free end 20A of theadjustable support 20 is arranged at least partly or fully in the insertreceiving cavities 16A of the base charger 10. In some embodiments, seeFIGS. 5A, 6A, 6B, 8A to 8C, 10A, 10B, 11A, 11B and 12 , the transmittercharging element(s) 11 is/are arranged at least partly or fully in theinsert receiving cavities 16A of the base charger 10. In someembodiments, see FIGS. 5A, 6A, 6B, 8A to 8C, 10A, 10B, 11A, 11B and 12 ,the first free end 20A of the adjustable support 20 and the transmittercharging element(s) 11 are arranged at least partly or fully in theinsert receiving cavities 16A of the base charger 10.

In some embodiments, see e.g. FIGS. 1A, 2A, 5B, 6B, 7A to 7C, 10B, 11B,13A, and 13B, the first free end 20A of the adjustable support 20 and/orthe transmitter charging element(s) 11 are/is arranged fully outside themodel specific insert cavities 201, 211. In some embodiments, see e.g.FIGS. 5B, 6B, 7A to 7C, 10B, 11B, 13A, and 13B, the first free end 20Aof the adjustable support 20 and/or the transmitter charging element(s)11 are/is arranged at least partly in or fully outside the modelspecific insert cavities 201, 211 and the insert receiving cavities 16Aof the base charger 10.

In some embodiments, see e.g. FIGS. 5A, 8A and 8B, the model specificcavity/-ies 201, 211 of the first or second model specific insert(s)200, 210 each is defined by at least one insert cavity wall 202, 212 ofthe model specific insert and wherein each model specific cavity 201,211 comprises one or more through holes 203, 213 through the insertcavity wall(s) 202, 212. Hence, the first free end 20A of the adjustablesupport 20 and/or the transmitter charging element(s) 11 are/is arrangedat least partly in one or more of the through holes 203, 213 when any ofthe first or second model specific insert(s) 200, 210 is placed in thebase charger 10.

In some embodiments, see e.g. FIG. 1C, the first and/or second modelspecific inserts 200, 210 may comprise one or more guide elements 204,214 configured to support correct/controlled insertion of the first orsecond model specific insert 200, 210 into the base charger 10. Theguide elements 204, 214 may protrude from or be attached to or arrangedon an bottom outer surface or bottom cavity wall 202, 212 and/or one ormore side outer surface(s) or side cavity wall(s) 202, 212 of the one ormore cavity/-ies 201, 211 of the model specific insert(s) 200, 210.Outer surfaces of the cavity/-ies 201, 211 are the surfaces not facingand/or not being in contact with the model specific hearing aid(s) 100,110 when inserted. Inner surfaces of the cavity/-ies 201, 211 are thesurfaces facing and/or being in contact with the model specific hearingaid 100, 110 when inserted.

In some embodiments, see e.g. FIGS. 6A, 6B, 10A, and 10B, the insertcavity(ies) 16A comprise(s) one or more insert guides or one or moreinsert guide walls 16B, wherein at least one of the insert guides orinsert guide walls 16B comprises one or more through holes 16C in theinsert guide or insert guide wall(s) 16B, which through hole(s) 16Cis/are closed or fully surrounded by the insert guide(s) or insert guidewall(s) 16B over the whole circumference of the hole 16C, while in someembodiments, see e.g. FIGS. 11A, and 12 , the through hole(s) 16C is/areonly partly closed or surrounded by the insert guide or insert guidewall(s) 16B, i.e. holes are not closed, e.g. in FIGS. 11A and 12 , thethrough holes 16C are elongated through holes or slits through thethickness of the insert guide or insert guide walls 16B extending allthe way up to the edge or side of each insert cavity 16A and the one ormore insert guides or insert guide walls 16B making the through holes16C into recesses, whereby, here, the adjustable support 20 is a part ofthe insert guide(s) or insert guide wall(s) 16B. In some embodiments,see e.g. FIGS. 6A, 6B, 10A, and 10B, the elongated body of theadjustable support 20 shaped like a cylindrical pin or profiled withanother elongated shape via extrusion may be arranged in the throughhole(s) 16C. The elongated body of the adjustable support 20 shaped likea cylindrical pin may be configured to slide back and forth in thethrough hole 16C in the direction D when the first or second modelspecific insert 200, 210 is inserted or removed from the base charger10.

In some embodiments, see e.g. FIGS. 6B, 6C, 7A to 7C, 10B, and 13A to13C, the first free end(s) 20A of the adjustable support(s) 20 and/orthe transmitter charging element(s) 11 are/is arranged fully outside oneor more model specific insert cavities 201, 211 of the first or secondmodel specific insert 200, 210.

In some embodiments, see e.g. FIGS. 7A to 7C and 8A to 12 , the elasticelement 22 comprises at least one elastic arm similar to a leaf springor the elastic element 22 is made up of at least one elastic arm or leafspring. In some embodiments, see e.g. FIG. 7A, the adjustable support 20comprises the elastic arm(s) or leaf spring(s) 22 and the compressibleelement 23, which together enable the adaptable positioning of thetransmitter charging element(s) 11 being pressed against thecompressible element 23 when the model specific insert(s) 200, 210 areplaced in the base charger 10 and the elastic arm(s) or leaf spring(s)22 enable a flexibility in the direction perpendicular to the directionof insertion (shown by the solid arrow) for the model specific insert(s)200, 210 to provide an adaptable aligning of the transmitter chargingelement(s) 11 with the model specific insert(s) 200, 210 that aredifferently sized and/or shaped etc., see this visualized in dottedlines in FIG. 7A to show another model specific insert being displacedand inserted at another position, as positions P and P₁, P₂ depending onthe model specific insert(s) 200, 210, the same positioning isapplicable to FIGS. 7B and 7C.

In some embodiments, see e.g. FIGS. 7A, 7B and 7C, the model specificinsert 200, 210 comprises guiding surfaces 27 that engage the adjustablesupport 20 when inserted into the base charger 10, such that thetransmitting charging element(s) 11 is/are biased or urged or pressedfrom the start/base position P towards the model specific insert(s) 200,210 it-/themselves and/or the cavity wall 202, 212 of the model specificinsert(s) 200, 210 and/or the receiver charging element(s) 101, 111 intothe first or second position P₁, P₂ enabling charging by the hearingdevice charger 1. The guiding surfaces 27 act as supports in someembodiments to facilitate insertion and holding of the model specificinsert(s) 200, 210 in proper fit, alignment and position.

In some embodiments, see e.g. FIG. 12 , where the elastic element 22comprises or is made up of at least two upright elastic elongated armsor thin plates similar to leaf springs arranged in a sandwiched orlaminated manner. In some embodiments, see e.g. FIGS. 7A to 9B, 10A,10B, 11A, 11B, and 12 , the elastic element 22 is made of metal orplastic or any combination of those materials, the same goes for theelastic element 22 when being a helical and/or leaf spring. In someembodiments, the elastic element 22 is made as a double or twin ortriple spring, e.g. a smaller helical spring within one or more largerhelical springs and/or a metal elastic elongated arms or thin platessimilar to leaf springs sandwiched over one or more other metal elasticelongated arms or thin plates similar to leaf springs and/or plasticelastic elongated arms or thin plates similar to leaf spring(s). In someembodiments, see e.g. FIGS. 8A to 9B, the elastic elongated arms orplates similar to leaf spring(s) 22 has/have a first free end 20A beingmade double, either “double-folded” or bent as in FIGS. 8C and 8D orshaped as a poker or hay- or pitchfork with two claws. In someembodiments, see e.g. FIGS. 10A and 10B, a larger part of the elasticelement 22, here, also an elastic arm or thin plate similar to a leafspring, is double-bent where a first upper part is attached to theelongated body of the adjustable support 20 to be able to bend whileurging or biasing or moving or pushing or pulling the elongated body ofthe adjustable support 20 and at the same time moving the transmittercharging element 11 linearly towards or from the model specificinsert(s) 200, 210 and/or the receiver charging element(s) 101, 111 asshown with the double arrow for urging direction D when placed thereinas the elongated body is guided in guides 27 in the wall 16B of theframe 16 and the frame at each end 20A, 20B of the elongated body.Hence, these double-shaped and bent first free ends 20A of the elasticand elongated arm similar to leaf spring(s) 22 provides additionalflexibility when the model specific insert(s) 200, 210 are inserted intothe base charger 10 and thread past the adjustable support(s) 20 in asimilar or same way as for all embodiments.

Hence, in some embodiments, the helical or leaf spring of the elasticelement 22 is made of metal or plastic or any combination of thosematerials.

In some embodiments it is preferred that the elastic element 22 or atleast parts of the elastic element 22 is made of metal, as metals arenot exposed to creep (or permanent deformation over time due to anapplied force), such as plastic materials may be. An elastic element 22made of metal may thereby provide a more reliable bias or urging forceurging the transmitter charging element(s) 11 against or towards one ofthe model specific inserts 200, 210 when the model specific insert isplaced in the base charger 10, this both over time and if a modelspecific insert with larger cavity/-ies 201, 211 is replaced with amodel specific insert with smaller cavity/-ies so that the distance d₁,d₂ the transmitter charging element(s) 11 is/are urged or bias becomesshorter. FIGS. 6A to 6C shows how the elastic element 22 may comprise ahelical spring, which preferably may be made of metal. FIG. 7C shows anexample of an elastic element 22 comprising an elastic arm whichpreferably may be made of metal. FIG. 12 shows how the elastic element22 may comprise both a metal plate and an elastic arm made of plastic.The metal plate 22 may be added to support the elastic arm 22 made ofplastic, wherein the metal plate is the thinner plate (to the right inFIG. 12 ) compared to the thicker elastic arm of plastic (to the left inFIG. 12 ).

In some embodiments, see e.g. FIGS. 11A to 12 , the first free end 20Aof the adjustable support 20 comprising the transmitter charging element11 or the support plate 11A comprises a hinged or pivotable part 24connecting the transmitter charging element(s) 11 or the support plate11A to the first free end 20A of the adjustable support 20 via a pivotor hinge connection 24. In some embodiments, see e.g. FIGS. 13A to 13C,the second end 20B of the adjustable support 20 is pivotally attached toone or more attachments 21 of the frame 16 of the base charger 10 viaone or more torsion hinges 24.

In some embodiments, see e.g. FIGS. 13A to 13C, the adjustable support20 comprises a protruding member or arm or lever 25 arranged between thefirst free end 20A and the second end 20B. The adjustable support 20 mayin this embodiment be an flexible arm being attached to the frame 16 ofthe base charger 10 by means of a hinge 24 and/or may be an elongatedarm similar to a leaf spring protruding from or being attached to theframe 16 of the base charger 10. The adjustable support 20 may define anaxis extending from the first free end 20A to the second end 20B. Theprotruding lever 25 may extend along a longitudinal axis beingperpendicular or approximately perpendicular to the axis between thefirst free end 20A and the second end 20B. The protruding lever 25 isconfigured to be engaged by a lower part or bottom of any of the firstor second model specific insert(s) 200, 210 when any of the first orsecond model specific insert(s) is introduced into the base charger 10as visualized by the solid arrow of FIG. 13A pointing downwards. Hence,the first free end 20A is biased/urged with the transmitter chargingelement(s) 11 towards and/or against the model specific insert(s) and/orthe associated receiver charging element 101, 111 by the protrudinglever 25 working as a torque arm.

In some embodiments, see e.g. FIGS. 7A and 14 , the adjustable support20 comprises the compressible element 23 arranged at least partlybetween the first free end 20A and the transmitter charging element 11to provide a flexibility and/or a tolerance adaptability and/or to exerta bias force urging the first free end 20A of the adjustable supportand/or the transmitter charging element 11 away from each other, whenthe first or second model specific insert is not placed in the basecharger 10, and/or towards the first or second model specific insert200, 210, when the first or second model specific insert is placed inthe base charger 10, in a direction being substantially in parallel withor in parallel with or inclined or substantially perpendicular orperpendicular to the direction of insertion of the first model specificinsert and/or the second model specific insert. In some embodiments, seee.g. FIG. 7A, the adjustable support may comprise both the compressibleelement 23 and an elastic element 22, such as a spring (e.g. theelongated arm similar to a leaf spring or a helical spring). Thecompressible element 23 may possibly be used in most of the embodimentsof the present disclosure but in some embodiments, the compressibleelement 23 is not always necessary to use.

In some embodiments, see e.g. FIGS. 6B, 8A and 8B, one or more weights18 could be permanently fixed or integrated in the base charger 10 or bean optional entity and/or be a unit detachable from the base charger.The one or more weights 18 may preferably be arranged in the bottom partor bottom housing 15 of the base charger 10 to ensure stability of thehearing device charger 1 when standing on a table or any othersubstantial flat surface, so that the hearing device charger 1 do nottilt when subjected to a minor push or the like.

The hearing device charger 1 may comprise one or more control units 17for controlling the functionality of the charging by being operativelyconnected to other components of the hearing device charger 1, the basecharger 10 and its transmitter charging element(s) 11. The hearingdevice charger 1 and base charger 10 comprises one or more conduits orwiring for operative connection, e.g. electrical wiring or conduits 19,between the control unit 17 and the transmitter charging element(s) 11and/or any other associated component required for control and poweringof the charging. The electrical wiring 19 is in some embodimentsaccomplished by loose wiring to enable the flexibility and movement ofthe transmitter charging element(s) 11 when adapting to the differentmodel specific insert(s) 200, 210 and/or the model specific hearingdevice(s) 100, 110. The control unit 17 for controlling the hearingdevice charger 1 is operatively connected to all necessary components,such as electronics and/or electronic circuits and mechanical devicesincl. electrical switches, relays, integrated circuits, conduits,external power applications providing power to the hearing devicecharger 1 etc. However, these entities working together for theoperation of the hearing device charger 1 are possible to implement byuse of many different types of components and parts being commonknowledge for a skilled person and are therefore not explained in detailherein. The control and charging control unit 17 for controlling thehearing device charger 1 and its charging are in some embodimentsoperatively connected to one or more built-in and rechargeable batteriesto safely operate the hearing device charger 1 and/or charge thebattery/-ies 102, 112 in each hearing device 100, 110 when the hearingdevice charger 1 is not connected to an external power source.

In some embodiments, the elastic element 22 works as or is a biasingorgan.

In some embodiments, the transmitter charging element(s) 11 inside thecavity/-ies 12 of the base charger 10 is/are positioned and/or movedand/or displaced by one or more forces exerted by the insertion of thefirst model specific insert(s) 200 and/or the second model specificinsert(s) 210 and/or by insertion of a third or fourth model specificinsert 200 and/or fifth second model specific insert 210 or more.

In some embodiments, the base charger 10 is adapted to removable receivethe first model specific insert(s) 200 having/for the first modelspecific hearing device(s) 100 to enable replacing the first modelspecific insert(s) with the second (and different) model specificinsert(s) 210 having/for the second model specific hearing device(s) 110comprising the second receiver charging element(s) 111.

In some embodiments, see e.g. FIGS. 6A to 6B, the adjustable support 20comprises an elastic element 22 being a helical spring made of metal andthe elongated body is a cylindrical pin or axle extending through thehelical spring 22 giving better guidance/control of the movement for theadjustable support and the transmitter charging element(s) 11. This asthe helical spring 22 made of metal is not exposed to creep (orpermanent deformation over time due to an applied force) in the samemanner as a plastic spring might be and the movement of the helicalspring is guided/controlled by the cylindrical pin extending through thehelical spring.

The person skilled in the art realizes that the present disclosure isnot limited to the preferred embodiments described above. The personskilled in the art further realizes that modifications and variationsare possible within the scope of the appended claims. Additionally,variations to the disclosed embodiments can be understood and effectedby the skilled person in practicing the claimed disclosure, from a studyof the drawings, the disclosure, and the appended claims. Thespecification and drawings are, accordingly to be regarded in anillustrative rather than restrictive sense. The claimed invention isintended to cover all alternatives, modifications and equivalents.

Items

Item 1. A charging kit 1 for charging one or more rechargeable hearingdevices 100,110, the hearing device(s) being configured to be worn by auser, the charging kit comprising a base charger 10 being configured toreceive a first model specific insert 200, the base charger comprising atransmitter charging element 11, where the first model specific insertis adapted to removably receive at least a first model specific hearingdevice 100 of the one or more hearing devices, the first model specifichearing device comprising a first receiver charging element 101,characterized in that the transmitter charging element 11 is arranged inthe base charger 10 on an adjustable support 20 being configured toprovide an adaptable positioning of the transmitter charging element,whereby the transmitter charging element is configured to be urgedtowards the first model specific insert when the first model specificinsert is placed in the base charger thereby enabling energy to betransferrable from the transmitter charging element to the firstreceiver charging element 101 of the first model specific hearing device100 when placed in the first model specific insert.Item 2. The charging kit 1 according to item 1, the base charger 10being configured to receive a second model specific insert 210, whereinthe second model specific insert is adapted to removably receive atleast a second model specific hearing device 110 of the one or morehearing devices, the second model specific hearing device comprising asecond receiver charging element 111, and wherein the adjustable support20 of the transmitter charging element 11 is adapted to provide theadaptable positioning of the transmitter charging element, so that thetransmitter charging element is configured to be urged towards thesecond model specific insert 210 when the second model specific insertis placed in the base charger enabling energy to be transferrable fromthe transmitter charging element to the second receiver charging element111 of the second model specific hearing device 110 when the secondmodel specific hearing device is placed in the second model specificinsert.Item 3. The charging kit 1 according to any preceding item, wherein thebase charger 10 comprises a cavity 12 configured to mate with the firstmodel specific insert 200 and/or the second model specific insert 210,and/or each model specific insert comprises at least one model specificinsert cavity 201, 211 configured to mate with the first or second modelspecific hearing device 100, 110, respectively.Item 4. The charging kit 1 according to any preceding item, wherein thefirst and/or second model specific insert 200, 210 comprises two modelspecific insert cavities 201, 211 of which each model specific insertcavity 201, 211 is configured to mate with one of a pair of the firstmodel specific hearing devices 100 or to mate with one of a pair of thesecond model specific hearing devices 110.Item 5. The charging kit 1 according to any preceding item, wherein atleast one of the first model specific hearing devices 100 and/or atleast one of the second model specific hearing devices 110 is configuredfor wireless charging.Item 6. The charging kit 1 according to any preceding item, wherein oneor more or all of the first and/or the second model specific hearingdevices 100, 110 is/are inductively chargeable.Item 7. The charging kit 1 according to item 3 or any of items 4 to 6when dependent on item 3, wherein the transmitter charging element 11 isarranged to be positioned at a start position Pin the cavity 12 of thebase charger 10 before the first model specific insert 200 is placed inthe base charger, and the transmitter charging element is configured tobe displaced to a first position P₁ by the first model specific insertand to act with a urging force towards the first model specific insert200 when the first model specific insert is placed in the base charger,the first position P₁ being different from the start position P.Item 8. The charging kit 1 according to item 7, wherein the transmittercharging element 11 is configured to be displaced to the first positionP₁ to align with the first receiver charging element 101 of the firstmodel specific hearing device 100, when the first model specific hearingdevice is placed in the first model specific insert 200 in the basecharger 10, and to act with a urging force towards the first modelspecific insert 200 and the first receiver charging element of the firstmodel specific hearing device.Item 9. The charging kit 1 according to item 7 or 8, wherein thetransmitter charging element 11 is arranged to be positioned at thestart position P in the cavity 12 of the base charger 10 before thesecond model specific insert 210 is placed in the base charger, and thetransmitter charging element 11 is configured to be displaced to asecond position P₂ by the second model specific insert and to act with aurging force towards the second model specific insert when the secondmodel specific insert is placed in the base charger, the second positionP₂ being different from the start position P.Item 10. The charging kit 1 according to item 9, wherein the transmittercharging element 11 is configured to be displaced to the second positionP₂ to align with the second receiver charging element 111 of the secondmodel specific hearing device 110, when the second model specifichearing device is placed in the second model specific insert 210 in thebase charger 10, and to act with a urging force towards the second modelspecific insert and the second receiver charging element of the secondmodel specific hearing device.Item 11. The charging kit 1 according to any of items 7 to 10, whereinthe first distance d₁ between the start position P and the firstposition P₁ is shorter, equal to or longer than the second distance d₂between the start position P and the second position P₂.Item 12. The charging kit 1 according to any of items 1 to 11, whereinthe adjustable support 20 comprises an elastic element 22 configured tomake the transmitter charging element(s) 11 of the base charger 10movable between different positions P, P₁, P₂ in the base charger andable to act with a urging force towards or against or into contact withthe first model specific insert 200 or the second model specific insert210 when the first or second model specific insert is placed in the basecharger.Item 13. The charging kit 1 according to item 12, wherein the elasticelement 22 of the adjustable support 20 make the transmitter chargingelement(s) 11 of the base charger 10 movable between different positionsP, P₁, P₂ in the base charger, when the first or second model specifichearing device 100, 110 is placed in the first or second model specificinsert 200, 210 in the base charger, and able to act with a urging forcetowards or against or into contact with the first receiver chargingelement of the first model specific hearing device, when the first modelspecific hearing device is placed in the first model specific insert 200in the base charger, and able to act with a urging force towards oragainst or into contact with the second receiver charging element of thesecond model specific hearing device, when the second model specifichearing device is placed in the second model specific insert 210 in thebase charger.Item 14. The charging kit 1 according to any of items 3 to 13, whereinthe adjustable support 20 comprises an elongated body with a first freeend 20A and a second end 20B opposite the first free end, whereby thetransmitter charging element 11 is arranged on the first free end 20A ofthe adjustable support and the second end 20B of the adjustable supportis attached to a guide 27 or attachment point 21 in the base charger 10,and the first free end of the adjustable support is arrangedmovable/displaceable in the cavity 12 of the base charger 10.Item 15. The charging kit 1 according to item 14 and item 12, whereinthe elongated body of the adjustable support 20 comprises or is theelastic element 22.Item 16. The charging kit 1 according to item 14, wherein the adjustablesupport 20 comprises an elastic element 22 arranged at least partlybetween the first free end 20A and the second end 20B to exert a pushforce urging the first free end of the adjustable support and/or thetransmitter charging element(s) 11 inside the base charger 10 in adirection being substantially perpendicular or perpendicular to thedirection of insertion of the first model specific insert 200 and/or thesecond model specific insert 210.Item 17. The charging kit 1 according to any of items 14 to 16, whereinthe base charger 10 comprises one or more insert receiving cavities 16A,whereby the first free end 20A of the adjustable support 20 and/or thetransmitter charging element(s) 11 are/is arranged at least partly in orfully outside the insert receiving cavity/-ies 16A of the base charger10.Item 18. The charging kit 1 according to any of items 14 to 17, whereineach of the model specific insert cavities 201, 211 of first or secondmodel specific inserts 200, 210 is defined by an insert cavity wall 202,212, wherein each insert cavity 201, 211 comprises one or more throughholes 203, 213, wherein the first free end 20A of the adjustable support20 and/or the transmitter charging element(s) 11 are/is arranged atleast partly in one or more of the through holes when one of the firstand/or second model specific inserts is placed in the base charger 10.Item 19. The charging kit 1 according to any of items 16 to 18 when item17 or 18 depends on item 16, wherein the elastic element 22 of theadjustable support 20 is arranged at least partly restrained between thefirst free end 20A and the second end 20B to be pre-tensioned to exertthe urging force.Item 20. The charging kit 1 according to any of items 14 to 19 whendependent on item 12 or 16, wherein the elastic element 22 is configuredto extend along the elongated body of the adjustable support 20 and toenclose or encompass or surround or cover at least a part of the outersurface of the elongated body of the adjustable support.Item 21. The charging kit 1 according to any of items 12 to 20 whenitems 17 to 19 depend on item 12, wherein the elastic element 22comprises at least one helical spring or at least one leaf spring or theelastic element is made up of at least one helical spring or at leastone leaf spring.Item 22. The charging kit 1 according to any of items 12 to 21 when item17 or 18 depends on item 12 or 16, wherein the elastic element(s) 22comprise(s) or is/are made up of at least two leaf springs arranged in asandwiched or laminated manner.Item 23. The charging kit 1 according to any of items 12 to 22 when item17 or 18 depends on item 12 or 16, wherein the elastic element(s) 22is/are made of metal or plastic or any combination of those materials.Item 24. The charging kit 1 according to any of items 21 to 23, whereinthe helical or leaf spring of the elastic element 22 is made of metal orplastic or any combination of those materials.Item 25. The charging kit 1 according to any of items 14 to 24, whereinthe first free end 20A of the adjustable support 20 comprising thetransmitter charging element(s) 11 is a hinged or pivotable part 24 ofthe elongated body of the adjustable support.Item 26. The charging kit 1 according to any of items 14 to 25, whereinthe transmitter charging element 11 is connected to the first free end20A of the adjustable support 20 via a pivot or hinge 24.Item 27. The charging kit 1 according to any of items 14 to 26, whereinthe adjustable support 20 comprises a protruding member or arm or lever25 arranged between the first free end 20A and the second end 20B, theprotruding member being configured to be engaged by any of the first orsecond model specific insert 200, 210 when any of the first or secondmodel specific insert is introduced into the base charger 10, wherebythe first free end and the transmitter charging element(s) 11 are urgedtowards the model specific insert.Item 28. The charging kit 1 according to item 27, wherein the second end20B of the adjustable support 20 is pivotally attached to the frame 16of base charger 10 via a torsion hinge 24.Item 29. The charging kit 1 according to any of items 14 to 28, whereinthe adjustable support 20 comprises a compressible element 23 arrangedat least partly between the first free end 20A and the transmittercharging element 11 to provide a flexibility and/or a toleranceadaptability and/or to exert a urging force urging the first free end ofthe adjustable support and/or the transmitter charging element 11 awayfrom each other and/or towards the first or second model specific insert200, 210, when the first or second model specific insert is placed inthe base charger, in a direction being substantially perpendicular orperpendicular to the direction of insertion of the first model specificinsert and/or the second model specific insert.

LIST OF REFERENCES

-   1: Charging kit/assembly/device. 10: Base charger with housing. 11:    Transmitter charging element of base charger. 11A: Support plate.    12: Cavity/-ies of base charger. 13: Attachment/-s for attaching    model specific inserts to base charger. 13A: Attachment/-s of base    charger for holding of parts making it up. 14: Top housing of base    charger. 15: Bottom housing of base charger. 16: Frame of base    charger. 16A: Insert cavity. 16B: Insert guide/Insert guide wall.    16C: Through hole(s) of insert guide/insert guide wall 16B. 17:    Operational device/Controller/Control unit of base charger    comprising electronics, e.g. one or more printed circuit boards,    power supplies, conduits, switches etc. 18: Weight that could be    permanently fixed or integrated in the base charger or be an    optional entity and/or be a unit detachable from the base charger.    19: Conduits to/from controller 17.-   20: Adjustable/Adaptable support/structure of transmitter charging    element. 20A: First free end of adjustable/adaptable    support/arrangement 20. 20B: Second end of adjustable or adaptable    support/arrangement 20. 21: Attachment point of support 20. 22:    Elastic element of the adjustable support, such as an elastic arm, a    spring (e.g. a helical spring made of plastic or metal) or a leaf    spring. 22A: First end of helical spring 22. 22B: Second end of    helical spring 22. 23: Compressible element of the adjustable    support, such as rubber or foam in the form of a plate/pad, e.g.    made of Poron®, or just a hard or stiff spacer or the like or part    of the support being hard or stiff. 24: Hinge/Pivot of adjustable    support, e.g. a living hinge or torsion hinge. 25: Protruding    arm/lever of adjustable support. 26: Shoulder on support 20. 27:    Guide of support 20. 28: Holder of transmitter charging element 11.    29: Flange/edge of holder 28.-   100: First model(s)/group(s) specific hearing device(s). 101: First    receiver charging element. 102: Rechargeable battery of the first    hearing device(s) 100. 103: BTE housing of the first hearing    device(s) 100. 104: Hook or ear plug of the first hearing device(s)    100.-   110: Second model(s)/group(s) specific hearing device(s). 111:    Second receiver charging element. 112: Rechargeable battery of the    second hearing device(s) 110. 113: BTE housing of the second hearing    device(s) 110. 114: Hook or ear plug of the second hearing device(s)    110.-   200: First model(s)/group(s) specific insert. 201: Model specific    cavity/-ies of first model(s)/group(s) specific insert. 202: Cavity    wall(s) of cavity/-ies 201. 203: Through hole(s) of cavity wall(s)    202. 204: Guide element(s) of first model(s)/group(s) specific    insert.-   210: Second model(s)/group(s) specific insert. 211: Model specific    cavity/-ies of second model(s)/group(s) specific insert. 212: Cavity    wall(s) of cavity/-ies 211. 213: Through hole(s) of cavity wall(s)    212. 214: Guide element(s) of second model(s)/group(s) specific    insert.-   D: Direction of urging of the transmitter charging element 11. P:    Start position of transmitter charging element. P₁: First position    of transmitter charging element. P₂: Second position of transmitter    charging element. d₁: First distance. d₂: Second distance.

The invention claimed is:
 1. A charging kit for charging a first modelspecific hearing device that is configured to be worn by a user, thecharging kit comprising: a base charger configured to receive a firstmodel specific insert, the base charger comprising a transmittercharging element, wherein the first model specific insert is configuredto removably receive the first model specific hearing device, the firstmodel specific hearing device comprising a first receiver chargingelement; wherein the transmitter charging element of the base charger isat or coupled to an adjustable support, the adjustable supportconfigured to provide an adaptable positioning for the transmittercharging element, whereby the transmitter charging element is configuredto be urged towards the first model specific insert when the first modelspecific insert is received by the base charger thereby allowing energyto be transferrable from the transmitter charging element to the firstreceiver charging element of the first model specific hearing devicewhen the first model specific hearing device is received by the firstmodel specific insert; and wherein at least a part of the first modelspecific insert is between the first model specific hearing device andthe transmitter charging element when the first model specific insertreceives the first model specific hearing device.
 2. The charging kitaccording to claim 1, wherein the base charger is configured to receivea second model specific insert, wherein the second model specific insertis configured to removably receive a second model specific hearingdevice, the second model specific hearing device comprising a secondreceiver charging element.
 3. The charging kit according to claim 2,wherein the adjustable support is configured to provide the adaptablepositioning for the transmitter charging element, so that thetransmitter charging element is urged towards the second model specificinsert when the second model specific insert is received by the basecharger to thereby allow energy to be transferrable from the transmittercharging element to the second receiver charging element of the secondmodel specific hearing device when the second model specific hearingdevice is received by the second model specific insert.
 4. The chargingkit according to claim 2, wherein the base charger comprises a cavityconfigured to accommodate the first model specific insert and/or thesecond model specific insert.
 5. The charging kit according to claim 1,wherein the base charger is configured to wirelessly charge the firstmodel specific hearing device.
 6. The charging kit according to claim 1,wherein the transmitter charging element is not in physical contact withthe first receiver charging element when the charging kit is chargingthe first model specific hearing device.
 7. The charging kit accordingto claim 1, further comprising a spring or an elastic element configuredto urge both the adjustable support and the transmitter charging elementtowards the first model specific insert.
 8. The charging kit accordingto claim 1, wherein the adjustable support is configured to translaterectilinearly relative to a housing.
 9. The charging kit according toclaim 1, wherein the first model specific insert comprises a firstsurface to interface with the first model specific hearing device, and asecond surface opposite from the first surface, and wherein theadjustable support is configured to move relative to a housing towardsthe second surface of the first model specific insert.
 10. The chargingkit according to claim 1, wherein the base charger comprises a basehousing, wherein the transmitter charging element is contained insidethe base housing.
 11. A charging kit for charging a first model specifichearing device that is configured to be worn by a user, the charging kitcomprising: a base charger configured to receive a first model specificinsert, the base charger comprising a transmitter charging element,wherein the first model specific insert is configured to removablyreceive the first model specific hearing device, the first modelspecific hearing device comprising a first receiver charging element;wherein the transmitter charging element of the base charger is at orcoupled to an adjustable support that is configured to provide anadaptable positioning for the transmitter charging element, whereby thetransmitter charging element is configured to be urged towards the firstmodel specific insert when the first model specific insert is receivedby the base charger thereby allowing energy to be transferrable from thetransmitter charging element to the first receiver charging element ofthe first model specific hearing device when the first model specifichearing device is received by the first model specific insert; whereinthe base charger is configured to receive a second model specificinsert, wherein the second model specific insert is configured toremovably receive a second model specific hearing device, the secondmodel specific hearing device comprising a second receiver chargingelement; wherein the base charger comprises a cavity; wherein thetransmitter charging element is at a start position in the cavity of thebase charger before the second model specific insert is received by thebase charger; wherein the transmitter charging element is at anotherposition when the second model specific insert is received by the basecharter, the other position being different from the start position; andwherein the transmitter charging element provides an urging forcetowards the second model specific insert when the second model specificinsert is received by the base charger.
 12. A charging kit for charginga first model specific hearing device that is configured to be worn by auser, the charging kit comprising: a base charger configured to receivea first model specific insert, the base charger comprising a transmittercharging element, wherein the first model specific insert is configuredto removably receive the first model specific hearing device, the firstmodel specific hearing device comprising a first receiver chargingelement; wherein the transmitter charging element of the base charger isat or coupled to an adjustable support that is configured to provide anadaptable positioning for the transmitter charging element, whereby thetransmitter charging element is configured to be urged towards the firstmodel specific insert when the first model specific insert is receivedby the base charger thereby allowing energy to be transferrable from thetransmitter charging element to the first receiver charging element ofthe first model specific hearing device when the first model specifichearing device is received by the first model specific insert; whereinthe base charger comprises a cavity configured to receive the firstmodel specific insert; wherein the transmitter charging element is at astart position in the cavity of the base charger before the first modelspecific insert is received by the base charger; and wherein thetransmitter charging element is at a first position when the first modelspecific insert is received by the base charger, the first positionbeing different from the start position.
 13. The charging kit accordingto claim 12, wherein the cavity of the base charger is configured toreceive a second model specific insert, wherein the second modelspecific insert is configured to removably receive a second modelspecific hearing device, the second model specific hearing devicecomprising a second receiver charging element; wherein the transmittercharging element is at the start position in the cavity of the basecharger before the second model specific insert is received by the basecharger; wherein the transmitter charging element is at a secondposition when the second model specific insert is received by the basecharter, the second position being different from the start position andbeing different from the first position.
 14. A charging kit for charginga first model specific hearing device that is configured to be worn by auser, the charging kit comprising: a base charger configured to receivea first model specific insert, the base charger comprising a transmittercharging element, wherein the first model specific insert is configuredto removably receive the first model specific hearing device, the firstmodel specific hearing device comprising a first receiver chargingelement; wherein the transmitter charging element of the base charger isat or coupled to an adjustable support that is configured to provide anadaptable positioning for the transmitter charging element, whereby thetransmitter charging element is configured to be urged towards the firstmodel specific insert when the first model specific insert is receivedby the base charger thereby allowing energy to be transferrable from thetransmitter charging element to the first receiver charging element ofthe first model specific hearing device when the first model specifichearing device is received by the first model specific insert; whereinthe adjustable support comprises an elastic element configured to allowthe transmitter charging element of the base charger to be movablebetween different positions.
 15. The charging kit according to claim 14,wherein the elastic element is configured to provide an urging forcetowards the first model specific insert when the first model specificinsert is received by the base charger.
 16. A charging kit for charginga first model specific hearing device that is configured to be worn by auser, the charging kit comprising: a base charger configured to receivea first model specific insert, the base charger comprising a transmittercharging element, wherein the first model specific insert is configuredto removably receive the first model specific hearing device, the firstmodel specific hearing device comprising a first receiver chargingelement; wherein the transmitter charging element of the base charger isat or coupled to an adjustable support that is configured to provide anadaptable positioning for the transmitter charging element, whereby thetransmitter charging element is configured to be urged towards the firstmodel specific insert when the first model specific insert is receivedby the base charger thereby allowing energy to be transferrable from thetransmitter charging element to the first receiver charging element ofthe first model specific hearing device when the first model specifichearing device is received by the first model specific insert; whereinthe base charger comprises a cavity configured to accommodate the firstmodel specific insert, and wherein the adjustable support comprises anelongated body with a first free end and a second end opposite the firstfree end, the transmitter charging element being at or coupled to thefirst free end of the adjustable support, and wherein the first free endof the adjustable support is movable in the cavity of the base charger.17. The charging kit according to claim 16, wherein the adjustablesupport also comprises an elastic element extending along the elongatedbody.
 18. The charging kit according to claim 17, wherein the elasticelement comprises at least one helical spring.
 19. The charging kitaccording to claim 16, wherein the adjustable support also comprises anelastic element enclosing or encompassing or surrounding or covering atleast a part of an outer surface of the elongated body.
 20. The chargingkit according to claim 16, wherein the transmitter charging element isconnected to the first free end of the elongated body via a pivot orhinge.
 21. The charging kit according to claim 16, wherein the secondend of the elongated body is attached to a guide or attachment point inthe base charger.